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        <div style="color:Chocolate;text-align:center;display:inline-block;width:100%;">
 GTD通过帮助你更好的跟踪和管理你的思绪、需要做的和想做的事，从而使你能在合适的情境中静下心，集中精神完成最重要的任务。
</div>

<span id="more"></span>
<h4 id="基本概念"><a href="#基本概念" class="headerlink" title="基本概念"></a>基本概念</h4><ul>
<li>收集：把接收到的事情集中在一起</li>
<li>整理：对事情做出快速判断，决定直接抛弃、留存存档或是产生一个任务</li>
<li>组织：根据任务的不同属性将其归入不同的工作清单</li>
<li>执行：对于可以处理的任务进行处理</li>
<li>回顾：定期检查工作清单，如果条件成熟就进行归档</li>
</ul>
<h4 id="整理和组织"><a href="#整理和组织" class="headerlink" title="整理和组织"></a>整理和组织</h4><blockquote>
<p>一个交易系统，如果存储了大量的历史信息，就会负担过重，甚至无法有效处理新的交易。同样，如果大脑中存放了大量的“杂事”，不但会增加焦虑感，甚至会排挤掉真正有意义的思考，徒然损耗精力。清空大脑，可让人气定神闲，总是处于一切就绪的状态，从容高效的提升决策的品质和做事的效率。所以需要把每一个悬而未决的杂事都从大脑中拿出来，存储在外部的收集系统。</p>
<p>但是仅仅收集还不够，如果这些事情没有安排妥当，还是会让人感觉不安。当杂事收集到一定程度是，要对其进行整理。抛弃掉没用的垃圾和暂时不用考虑的参考信息，剩下的就是需要关注的任务。对于收集到的杂事，应该定期整理以便尽量控制其数量，最好达到清空的状态。在整理的时候，要做到以下两点：</p>
<blockquote>
<p>▪ 从头到尾：平等对待所有杂事，逐一处理，不避不拖。<br>▪ 一次一事：专注于每一件杂事，心无旁骛的判断当前杂事的实质，不要同时考虑下一件。</p>
</blockquote>
<p>进一步，可以快速判断这个任务的特征：是否可以在2分钟内解决？如果可以就马上解决掉。如果不能，还需要进一步判断任务的重要程度，谁来做，什么时候做，在哪里做，并根据这些特征将任务分配到不同的工作列表。最后，如果这个任务属于一个很多任务组成的“项目”，还需要为其打上该项目的标签。</p>
<p>大概80%以上的任务都可以如上略作思考就可得知下一步行动，15%的项目只要简单的借助辅助手段（如MindMap等工具）稍加记录即可，只有5%重大复杂的项目任务需要通盘筹算。</p>
</blockquote>
<h4 id="一些技巧"><a href="#一些技巧" class="headerlink" title="一些技巧"></a>一些技巧</h4><ul>
<li>预览超链接下的文件 <code>link-hint-open-link</code> <code>SPC x o</code></li>
</ul>
<h4 id="mybatis中的if判断"><a href="#mybatis中的if判断" class="headerlink" title="mybatis中的if判断"></a>mybatis中的if判断</h4><ol>
<li>```<br><choose><pre><code>        &lt;when test="params!=null"&gt;
            right JOIN
        &lt;/when&gt;
        &lt;otherwise&gt;
            LEFT JOIN
        &lt;/otherwise&gt;
</code></pre>&lt;/choose&gt;<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"></span><br><span class="line">2. ```sql</span><br><span class="line">   &lt;if test=""&gt;</span><br><span class="line">   &lt;/if&gt;</span><br></pre></td></tr></table></figure>
</choose></li>
</ol>
<h4 id="java下，double数值过大时，系统默认使用科学计数法"><a href="#java下，double数值过大时，系统默认使用科学计数法" class="headerlink" title="java下，double数值过大时，系统默认使用科学计数法"></a>java下，double数值过大时，系统默认使用科学计数法</h4><ul>
<li>使用<code>java.text.NumberFormat</code></li>
<li>使用<code>java.text.DecimalFormat</code></li>
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